Conveyer for book-stitching machines.



MvCHRiSTENSEN CONVEYER FOR BOOK STITCHING MACHINES.

APPLICATION HLED APR. 6. 1917- PatentedMan LlQlE}.

ATTORNEY:

COMPANY, OF RACINE,

CONVEYER FOR BOOK- NE, wIscoNsiN, ASSIGNOR T cHRIsTENsEN MACHINEwIscoNsIN, A CORPORATION or wIsooNsIN.

STITCHING MACHINES.

To all whom it may concern Be 1t known that I, MARTIN CHRISTENSEN,

a citizen of the United States, and resident mechanism. In ordinarymachines of this placed upon a fixed type the signatures are invertedV-shaped saddle and moved therealong by pins carried by an endless beltwithin the saddle. This manner of feed is objectionable because ofliability of soiling the sheets and of the changing of the position ofthe signatures with respect to each other, due to frictional contactwith the fixed saddle, with the result that the signatures are out ofline when they reach the stitchers. To overcome this difficulty I haveprovided a movable conveyer which is provided with means for preventingsagging of the parts forming the conveyer with respect to each other andalso in that portions of the members forming the saddle also form one ofthe connecting links of the conveyer.

The invention further consists in the several features hereinafter setforth and more particularly defined by claims at the conclusion hereof.

In the drawings:

Figure 1 is a side view of the device embodying the invention, partsbeing broken away and parts being shown in section;

Fig. 2 is a detail bottom view of a portion of the conveyer;

Fig. 3 is a section taken on the line 3-8 of Fig. 1; Fig. 4 is a sectionsimilar to Fig. 3 showing the conveyer used with a different form ofguide.

The conveyer, driven in any suitable manner, is mounted on sprocketscarried by a suitable frame and for detailed explanation of a type offrame which may be used with the conveyer reference is had to my PatentNo. 1,140,734 granted May 25, 1915. In the drawings I show a portion ofthe rear stand ard 9, which carries a tightener frame 11/ Specificationof Letters Patent.

groups of signatures abutting against the sides 9 Patented B13124, 1919.

Application filed April 6, 1917. Serial No. 160,172.

which is provided with a sprocket wheel 12 and one of the tightener boltmembers 14 which extends through the standard 9 and is adjustablysecured thereto by nuts 16.

he conveyer consists of a plurality of members 4 hingedly connectedtogether to form a movable saddle. Each member 4 has an invertedV-sha-ped portion 5, inwardly extending portions 6, and spaced apart depending flanges 7. Each flange consists of vertical portions 8 and 9parallel to each other and connected by a transverse portion 10 formingshoulders 11, said portions 9 and 10 forming in effect a channel 1nwhich links 12 are pivotally mounted at adjoining ends of the members bypins 13 passing through them and through said members, said links and 10to produce a straight pull on the conveyer members and thus positivelyprevent sagging of said members with respect to each other path wherebywhen running in a straight any liability of disarranging' or catchingthe signatures between the members is prevented and whereby the membersthemselves together with the links form an endless conveyer.

Means are provided for guiding the upper run of the conveyer consistingof a horizontally disposed channel bar 1 1 in which the conveyer runs,the lower edges of the flanges 7 and the bottom of the links 12 restingupon the web 15 of said bar or the guide means may be a single bar 16disposed between the depending flanges 9 of the members 4.

It will be noted that the inclined sides of the saddle members 4:project laterally beyond the guide means so that the sheet or sheetscarried by the saddle are spaced away from the same thereby preventingany interference therewith or any chance for soiling the sheet.

With this construction, it is only necessary to drop the groups ofsignatures onto the conveyor and they will be carried to the stitchingmechanism in proper alinement by pins 17 and without coming into contactwith the other parts of the conveyer and without liability of thesignatures being disarranged or caught between the members of theconveyer because of the connection which prevents the vertical movementof the members with respect to each other on the upper run of theconveyer.

I am. aware that the specific construction herein shown and described iscapable of some modification without departing from the spirit of theinvention and it is therefore my intention to claim all the noveltyinherent in the invention.

What I claim asmy invention is:

1. In a signature conveyor, the combination of a plurality of signaturesupporting elements having signature supporting surfaces of invertedV-shape cross-sections and lengthwise extending ShOL ldered portionsbelow said supporting surfaces, and means for securing said elementstogether in abutting relation to; form a smooth continuous supportingsurface for the groups of signatures and for preventing sagging of theconveyor when moving in a straight path comprising links hingedlyconnecting the ends of adjoining elements togetherand abutting againstsaid shouldered portions.

2. In a signature conveyor, the combination of a plurality of signaturesuporting elements having inverted V-shaped signature. supportingsurfaces and side portions below said surfaces extending inwardly anddownwardly then outwardly and clownwardly to form spaced innerlengthwise extending shouldered portions, and means for securing saidelements together in abutting relation to form a smoothcontinuoussupporting surface for the groups of signatures Copies. ofthis patent may be obtained. for five cents each,, by, addressing thelinks having their and for preventing sagging of the conveyer whenmoving in a straight path comprising ends disposed between the sides ofsaid elements andpivotally connecting the ends of adjoining elementstogether and" abuttingagainst said shouldered portions.

3. 'The combination, with supporting means, of a movable saddle conveyormounted thereon comprising a plurality of inverted V-shaped membershingedly connected together and means, for guiding the upper run o-f'theconveyor, the inclined sides of said members extending laterally beyondthe. guide means to. spacetheseportions of the signatures dependin belowthe sides of the saddle away from Send guide means.

l lhe combination, with supporting means, of a movable saddle conveyormounted thereon comprising a plurality of arrow-head shaped membershingedly connected together, and means for guiding the upper run'of-theconveyer,.the side portions of the arrow-head shaped members projectinglaterally beyond said gui mean space these portions of" the signatures,depending below the sides of the saddle away from said guide means.

In: testimony Whereof,.I aflix signature.

MARTIN CHRISTENSEN.

Commissioner 01' Iatentg Washington, D. G.

